BESS Repair Technician

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Tualatin, OR, US

Salary: $55,000.00 Annually

QPO Energy is seeking a BESS Repair Technician to support fault diagnosis, repair, testing, and documentation activities for Battery Energy Storage System (BESS) spare parts and control equipment, including String Controllers, Battery Protection Controllers (BPC), communication devices, power supplies, and related electrical assemblies.

This position is ideal for candidates with hands-on electrical or electronics troubleshooting experience who are interested in supporting energy storage systems. Training will be provided for company-specific products, tools, and procedures.

• Diagnose, troubleshoot, and repair BESS spare parts and electronic assemblies.
• Perform functional testing and verification of repaired equipment.
• Follow electrical schematics, wiring diagrams, SOPs, and work instructions to identify faults.
• Troubleshoot issues related to wiring, connectors, fuses, power supplies, control boards, and communication systems.
• Replace defective electrical or electronic components, including PCBs, controllers, power supplies, and connectors.
• Use diagnostic software and test equipment to verify system performance.
• Perform firmware updates, configuration loading, and basic device setup according to documented procedures.
• Support communication troubleshooting involving CAN, Modbus, RS485, Ethernet, and TCP/IP networks.
• Maintain accurate repair records, including failure symptoms, troubleshooting steps, replaced parts, and test results.
• Assist in developing and updating repair procedures, work instructions, and troubleshooting guides.
• Follow LOTO and electrical safety procedures when working with battery systems and energized equipment, as authorized.
• Provide general technical support for inventory inspection, refurbishment, and product evaluation activities as needed.

• Associate Degree (2-year degree) or equivalent relevant education/training/experience in Electronics Technology, Electrical Technology, Mechatronics, Industrial Maintenance, or a related technical field.
• Minimum 2 years of experience in electrical, electronics, equipment maintenance, or technical repair roles.
• Basic understanding of electrical and electronic principles, including voltage, current, resistance, AC/DC circuits, and electrical safety.
• Ability to read and interpret electrical schematics and wiring diagrams.
• Experience using digital multimeters and basic troubleshooting tools.
• Familiarity with Windows PC applications and diagnostic software.
• Strong problem-solving skills and attention to detail.
• Ability to work independently and as part of a team.

• Experience with BESS, renewable energy systems, industrial controls, or power electronics.
• Familiarity with CAN Bus, Modbus, RS485, or Ethernet communications.
• Basic soldering and electronic component replacement experience.
• Experience using oscilloscopes, insulation testers, or other electrical test equipment.
• Knowledge of Lockout/Tagout (LOTO) and electrical safety practices.

• Ability to lift up to 50 lbs.
• Ability to stand, bend, and work at a repair bench for extended periods.
• Ability to safely work in a laboratory and warehouse environment.